"Exports improved even though the yen was depreciating, suggesting that there hasn't been any major impact on growth yet, " said Kong Dong-Pak, an analyst at Hanwha Securities.
At the moment Dr Haller, who is now at McGill University in Montreal, is collaborating with Wenbo Tang of Arizona State University and Pak Wai Chan of the Hong Kong Observatory to apply Lagrangian theory to the problem of aircraft taking off and landing in difficult circumstances.